Arrowstreet Capital’s Magnolia Oil & Gas MGY Stock Holding History

Arrowstreet Capital’s Portfolio MGY Stock Details MGY Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$140M	Sell	5,463,526 -800,282	-13%	-$22.9M	0.06%	269
2026 Q1	$198M	Buy	6,263,808 +5,560,619	+791%	+$149M	0.11%	184
2025 Q4	$15.4M	Sell	703,189 -698,090	-50%	-$15.9M	0.01%	810
2025 Q3	$33.4M	Buy	1,401,279 +921,970	+192%	+$22M	0.02%	572
2025 Q2	$10.8M	Buy	479,309 +28,412	+6%	+$629K	0.01%	883
2025 Q1	$11.4M	Buy	+450,897	New	+$10.9M	0.01%	769
2021 Q4	–	Sell	-30,900	Closed	-$550K	–	1615
2021 Q3	$550K	Sell	30,900 -927,669	-97%	-$14M	﹤0.01%	1402
2021 Q2	$15M	Sell	958,569 -769,617	-45%	-$9.89M	0.02%	707
2021 Q1	$19.8M	Sell	1,728,186 -173,410	-9%	-$1.81M	0.03%	594
2020 Q4	$13.4M	Sell	1,901,596 -47,100	-2%	-$281K	0.02%	761
2020 Q3	$10.1M	Buy	1,948,696 +388,400	+25%	+$2.42M	0.02%	835
2020 Q2	$9.46M	Buy	+1,560,296	New	+$8.52M	0.02%	796
2019 Q2	–	Sell	-515,587	Closed	-$6.19M	–	1576
2019 Q1	$6.19M	Buy	+515,587	New	+$6.28M	0.01%	719

Other funds holding MGY

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Jupiter Topco New York $245B AUM

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Arrowstreet Capital's MGY Position: Q2 2026 in Review

Arrowstreet Capital reduced its Magnolia Oil & Gas (MGY) stake by 13% in Q2 2026, selling an estimated $22.9M and leaving 5,463,526 shares worth $140M. The position accounts for 0.06% of the portfolio, ranked #269.

Arrowstreet Capital first reported a position in MGY in Q1 2019 and has held it in 13 quarters since. The position peaked at $198M in Q1 2026. 408 funds tracked by Wall St. Rank hold MGY as of Q2 2026.

Arrowstreet Capital held 5,463,526 shares of Magnolia Oil & Gas worth $140M as of Q2 2026.
Arrowstreet Capital sold 800,282 Magnolia Oil & Gas shares in Q2 2026, an estimated $22.9M.
Magnolia Oil & Gas made up 0.06% of Arrowstreet Capital's portfolio in Q2 2026, its #269 holding.
Arrowstreet Capital first reported a position in Magnolia Oil & Gas in Q1 2019 and has held it in 13 quarters since.
Arrowstreet Capital's Magnolia Oil & Gas position peaked at $198M in Q1 2026.
408 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q2 2026.

Based on Arrowstreet Capital's 13F filing for Q2 2026, filed 13 Aug 2026.